Precipitated silicas

Details Precipitated silicas Precipitated silicas

1991-01-24

1992-03-24

Griffin, Ronald W.

Drug, bio-affecting and body treating compositions

Dentifrices

423335, 423339, A61K 716, C01B 33142, C01B 33154

Patent

active

050986953

ABSTRACT:
A precipitated silica, suitable for use in toothpastes, has a high absorbency, i.e. 110 to 180 cm.sup.3 100 g, and good abrasivity with a plastics abrasion value of 12 to 20. The silica provides abrasion even at a relatively low particle size.

REFERENCES:
patent: 3864470 (1975-02-01), Watson
patent: 4045240 (1977-08-01), Wason et al.
patent: 4105757 (1978-08-01), Wason
patent: 4122160 (1978-10-01), Wason
patent: 4191742 (1980-03-01), Wason
patent: 4243428 (1981-01-01), Donnet et al.
patent: 4857289 (1989-08-01), Naurouth

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